Prosecution Insights
Last updated: May 29, 2026

Examiner: LANGEL, WAYNE A

Tech Center 1700 • Art Units: 1731 1736 1793

This examiner grants 78% of resolved cases

Performance Statistics

78.5%
Allow Rate
+13.5% vs TC avg
1,673
Total Applications
+23.4%
Interview Lift
878
Avg Prosecution Days
Based on 1634 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
0.6%
§102 Novelty
39.5%
§103 Obviousness
43.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18284525 COMPOSITIONS, METHODS, AND SYSTEMS FOR MICROWAVE CATALYTIC AMMONIA SYNTHESIS Non-Final OA WEST VIRGINIA UNIVERSITY BOARD OF GOVERNORS ON BEHALF OF WEST VIRGINIA UNIVERSITY
18026247 HYDROGEN NANOBUBBLES INFUSED WATER FOR INDUSTRIAL CROP IRRIGATION Non-Final OA American Air Liquide, Inc.
18451699 Method for producing by-product yellow phosphorus slag from yellow phosphorus by unconventional electric furnace process, and use Non-Final OA Zhengzhou University
18252510 TREATMENT OF BAUXITE RESIDUE Non-Final OA THE UNIVERSITY OF QUEENSLAND
18650647 Bayer Process Non-Final OA Rio Tinto AIcan International Limited
18575077 METHOD AND APPARATUS FOR WASTE PROCESSING MIXED WASTE Non-Final OA 800 SUPER WASTE MANAGEMENT PTE. LTD.
18168333 MANUFACTURING AND USE OF FUNCTIONALIZED SOIL AMENDMENT Non-Final OA PRAIRIECHAR, INC, D/B/A PRAIRIE FOOD
18446417 Method of Bioammonia Production from Wastewater Through Application of Mass-Transfer Reaction Kinetics Final Rejection Figure 8 Environmental
18247613 MACRONUTRIENT COMPOSITIONS WITH SUPRAMOLECULAR STRUCTURES FOR AGRICULTURAL USE Non-Final OA BPS JUST ENERGY TECHNOLOGY, LLC
18247624 MICRONUTRIENT COMPOSITIONS WITH SUPRAMOLECULAR STRUCTURES FOR AGRICULTURAL USE Non-Final OA BPS JUST ENERGY TECHNOLOGY, LLC
17785929 A FERTILIZER GRANULE OF POLYHALITE AND POTASSIUM SULPHATE AND A COMPACTION PROCESS FOR THE PRODUCTION THEREOF Final Rejection ICL EUROPE COOPERATIEF U.A.
18362118 STRAW HUMIFICATION PROCESSING METHOD Non-Final OA CHANGCHUN XINRUIDE NEW MATERIAL TECHNOLOGY DEVELOPMENT CO., LTD.
18257546 NITRIFICATION INHIBITORS AND FORMULATIONS Non-Final OA Incitec Fertilisers Operations Pty Ltd
18039004 CONTROLLED RELEASE POTASSIUM CHLORIDE FERTILIZER Non-Final OA EVERRIS INTERNATIONAL B.V.
18140405 LIQUID SUSPENSION COMPOSITIONS AND COATED FERTILIZER PARTICLES Final Rejection Keystone Specialty Chemicals LLC
18026157 N-HETEROCYCLIC COMPOUNDS USED AS NITRIFICATION INHIBITOR Non-Final OA EUROCHEM ANTWERPEN
18150102 PROCESS FOR CARBON-FREE FERTILIZER PRODUCTION AND GRID BALANCING SYSTEM Non-Final OA Atlas Agro Holding AG
17956221 UREA CYCLE AUGMENTING COMPOSITION AND METHODS OF USE Final Rejection Panoptic Ag Solutions LLC
17739000 MANURE NUTRIENT RECOVERY SYSTEM AND METHOD Non-Final OA Element Agriculture Ltd

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